Works just fine, next time make sure to put a name after you save ("-save Elementalist" for example), that way game will create a .txt file with that name, which has save and info about it, in your Documents/Warcraft III/CustomMapData/TWRPG directory
-load ktUS%-XzgwG-AMn%q-ttmD5-YoZQk-BYwhy-hRzkG-X4zY8-HNr3$-fHeW@-?4WXL-bCM7e-jrCnd-Hc